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/* m- file for ibm ps/2 aix386.
   Copyright (C) 1989 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* The following three symbols give information on
 the size of various data types.  */

#define SHORTBITS 16		/* Number of bits in a short */

#define INTBITS 32		/* Number of bits in an int */

#define LONGBITS 32		/* Number of bits in a long */

/* i386 is not big-endian: lowest numbered byte is least significant. */

/* #undef BIG_ENDIAN */

/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
 * group of arguments and treat it as an array of the arguments.  */

/* #define NO_ARG_ARRAY */

/* Define WORD_MACHINE if addresses and such have
 * to be corrected before they can be used as byte counts.  */

/* #define WORD_MACHINE */

/* Define how to take a char and sign-extend into an int.
   On machines where char is signed, this is a no-op.  */

#define SIGN_EXTEND_CHAR(c) ((signed char)(c))

/* Now define a symbol for the cpu type, if your compiler
   does not define it automatically:
   Ones defined so far include vax, m68000, ns16000, pyramid,
   orion, tahoe, APOLLO and many others */

#define INTEL386
#define aix386
#define SYSTEM_TYPE "ibm-aix-386"

/* Use type int rather than a union, to represent Lisp_Object */


/* crt0.c, if it is used, should use the i386-bsd style of entry.
   with no extra dummy args.  On USG and XENIX,
   NO_REMAP says this isn't used. */

#define CRT0_DUMMIES bogus_fp,

/* crt0.c should define a symbol `start' and do .globl with a dot.  */


/* USG systems do not actually support the load average,
so disable it for them.  */

/* Define CANNOT_DUMP on machines where unexec does not work.
   Then the function dump-emacs will not be defined
   and temacs will do (load "loadup") automatically unless told otherwise.  */

/* #define CANNOT_DUMP */

/* Define VIRT_ADDR_VARIES if the virtual addresses of
   pure and impure space as loaded can vary, and even their
   relative order cannot be relied on.

   Otherwise Emacs assumes that text space precedes data space,
   numerically.  */

/* #define VIRT_ADDR_VARIES */

/* Define addresses, macros, change some setup for dump */

#define NO_REMAP
#undef static
  /* Since NO_REMAP, problem with statics doesn't exist */

#ifdef USG5_3
#define TEXT_START 0x00000000
#define TEXT_START 0x00400000
#define TEXT_END 0
#define DATA_START 0x00800000
#define DATA_END 0

/* The data segment in this machine always starts at address 0x00800000.
   An address of data cannot be stored correctly in a Lisp object;
   we always lose the high bits.  We must tell XPNTR to add them back.  */

#define DATA_SEG_BITS 0x00800000

#if 0 /* I refuse to promulgate a recommendation that would make
         users unable to debug - RMS.  */
/* delete the following line to foil optimization, enable debugging */

#define BSTRING
#define HAVE_DUP2
#define HAVE_VFORK

 * 	Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
 *	library functions.  Almost, but not quite the same as
 *	the 4.2 functions
#define HAVE_CLOSEDIR  /* This system, unlike ordinary SYSV, has closedir.  */

 *	Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 *      The 4.2 opendir, etc., library functions.

/* But don't use utimes() -- it causes SIGSEGV!  Use utime() instead. */
#define USE_UTIME

/* AIX defines FIONREAD, but it does not work.  */
/* This page was added in June 1990.  It may be incorrect for some versions
   of aix, so delete it if it causes trouble.  */

/* AIX has sigsetmask() */
#undef sigsetmask

/* AIX386 has BSD4.3 PTYs */

#define HAVE_PTYS

/* AIX has IPC. It also has sockets, and either can be used for client/server.
   I would suggest the client/server code be changed to use HAVE_SOCKETS rather
   than BSD as the conditional if sockets provide any advantages. */


/* AIX has sockets */

/* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */

/* Specify the font for X to use.  */

#define X_DEFAULT_FONT "8x13"

/* AIX has a wait.h.  */


/* Data type of load average, as read out of kmem.  */

#define LOAD_AVE_TYPE long	/* For AIX (sysV) */

/* Convert that into an integer that is 100 for a load average of 1.0  */

#define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0)
/* Here override various assumptions in ymakefile */

/* Define C_ALLOCA if this machine does not support a true alloca
   and the one written in C should be used instead.
   Define HAVE_ALLOCA to say that the system provides a properly
   working alloca function and it should be used.
   Define neither one if an assembler-language alloca
   in the file alloca.s should be used.  */

#ifdef __GNUC__
#define alloca(n) __builtin_alloca(n)
#define LIB_STANDARD /usr/local/lib/gcc-gnulib -lbsd -lrts -lc 
/* -g fails to work, so it is omitted.  */
/* tranle says that -fstrength-reduce does not help.  */
#define C_ALLOCA
#define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
#define LIBS_MACHINE -lbsd -lrts

#define OBJECTS_MACHINE hftctl.o
#define LD_SWITCH_MACHINE -T0x00400000 -K -e start

#ifdef USG5_3
#define XICCC
#define HAVE_GETWD
#define LD_SWITCH_MACHINE -T0x0 -K -e start

/* Things defined in s-usg5-3.h that need to be overridden.  */
#undef LIBX10_SYSTEM
#undef LIBX11_SYSTEM